QUERY_OPERATION_AND = 1
QUERY_OPERATION_OR = 2

TERM_OPERATION_AND = 'AND'
TERM_OPERATION_OR = 'OR'
TERM_OPERATIONS = [TERM_OPERATION_AND, TERM_OPERATION_OR]

TERM_QUOTES = ['"', '\'']
TERM_NEGATION_CHARACTER = '-'
TERM_SPACE_CHARACTER = ' '
